Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c1182c6968e57e6…

MALICIOUS

PDF

72.6 KB Authoring application: Karbon
MD5: e18eb24e38be62a02d6b08e04b4dd4b7 SHA-1: 382df656d4f1fe21f7df4327032e47af91dee1f4 SHA-256: 9c1182c6968e57e6c74e0307f8429424d119047672ae97c5c449d99210c760bf
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on unrelated domains, suggesting a link farm or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://dropdeadgorgeousbybrittany.com/uploads/1/3/0/5/130550832/8101395.pdf
    • http://cerritosnotarypublic.com/uploads/1/3/0/8/130814052/55f7c22d7b.pdf
    • http://trailswildinternational.com/uploads/1/3/0/4/130478244/eba086.pdf
    • http://jakartahydroponics.net/uploads/1/3/0/3/130323232/87011a56912b3.pdf
    • http://believersjourney.net/uploads/1/3/0/5/130588445/8433353.pdf
    • http://bearsvbabiesgame.com/uploads/1/3/0/4/130476984/nugapim.pdf
    • http://ownmurrieta.com/uploads/1/3/0/7/130776755/3280091.pdf
    • http://chadallers.com/uploads/1/3/0/5/130543682/4016a26.pdf
    • http://awpcmarianna.com/uploads/1/3/0/7/130776474/1fe614e2c270a.pdf
    • http://vesselrecordings.com/uploads/1/3/0/4/130483407/7198713.pdf
    • http://thepracticeproject.org/uploads/1/3/0/5/130590126/sesevisexunizov.pdf
    • http://alexvasiliu.com/uploads/1/3/0/4/130476272/7d561616.pdf
    • http://putaneggonitcookbook.com/uploads/1/3/0/6/130603769/e4d9758e6b5a.pdf
    • http://itsbluebird.com/uploads/1/3/0/5/130544754/5a708ded5.pdf
    • http://mypurplelilyboutique.com/uploads/1/3/0/7/130739419/kijixetagedumoru.pdf
    • http://anywheredogtraining.com/uploads/1/3/0/4/130489696/xexamubem.pdf
    • http://nomadicwellness.com/uploads/1/3/0/7/130740209/899ab2baae8883.pdf
    • http://oakwoodowls.com/uploads/1/3/0/2/130289332/xoxevopujafowus.pdf
    • http://www.truebluecleaning.net/uploads/1/3/0/2/130287457/wepafafotixozok.pdf
    • http://makersarena.com/uploads/1/3/0/4/130476688/97e81.pdf
    • http://sarahvermette.ca/uploads/1/3/0/6/130639175/6f6ad905a8.pdf
    • http://nepservicesinc.com/uploads/1/3/0/6/130621523/lumigudexuso_zaxodamefu_zepanim.pdf
    • http://monstacartoons.com/uploads/1/3/0/6/130605283/gowogu.pdf
    • http://ohiomoboil.com/uploads/1/3/0/4/130476243/zukivojuji_wafolikirozeji_pavuwuxosiri_kebajo.pdf
    • http://salinawindowcleaning.com/uploads/1/3/0/2/130271076/funefezejazido_kiwuvorovete_gisunufovinunas_kufevelonefuni.pdf
    • http://i62e9c.bdgct.com/uploads/1/3/0/2/130273616/130273616.html#sistema+gestor+de+base+de+datos+distribuidas+pdf

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001bee.bin
14b2996692545ddda00da28dbe076dcee6f2c9cc928e763e17f74143ff3c8a2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x1BEE 9428 bytes
font_01_sfnt_off0000cdc3.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC3 2652 bytes
font_02_sfnt_off0000d68f.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63
pdf-font-stream PDF embedded font (sfnt) at offset 0xD68F 16036 bytes